# US 10,501,999 B2 · Securing mechanism for a drilling element on a downhole drilling tool

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- Number: US 10,501,999 B2
- Document ID: US10501999B2
- Status: Granted
- Kind: B2
- Application number: 15/107,020
- Filed: 2015-05-15
- Published: 2018-07-12
- Granted: 2019-12-10
- Earliest claimed: 2014-10-06
- Assignees: Halliburton Energy Services, Inc.
- Applicants: Halliburton Energy Services, Inc.
- Inventors: Gregory Christopher Grosz; Brandon James Hinz; Seth Garrett Anderle
- Web page: https://patentgrep.com/patent/US10501999B2

## CPC

- E21B 10/62: characterised by parts, e.g. cutting elements, which are detachable or adjustable (E21B10/64 takes precedence; for roller bits E21B10/20; for augers E21B10/44)
- E21B 10/633: independently detachable
- E21B 17/1057: {Centralising devices with rollers or with a relatively rotating sleeve (E21B17/1014 takes precedence)}
- E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS

## Abstract

A downhole drilling tool is disclosed. The downhole drilling tool may include a drill bit having a bit body, a blade disposed on an exterior portion of the bit body, the blade including a pocket and a pocket groove adjoining the pocket. The drill bit may also have a drilling element located in the pocket, the drilling element including a drilling-element groove at least partially aligned with the pocket groove. In addition, the drill bit may have a locking element extending through a combined space inside the pocket groove and the drilling-element groove.

## Claims

### Claim 1

A drill bit, comprising:
a bit body;
a blade disposed on an exterior portion of the bit body, the blade including:
a pocket; and
a pocket groove adjoining the pocket, the pocket groove extending from a first opening on a surface of the blade to a second opening on the surface of the blade;
a drilling element located in the pocket, the drilling element including a drilling-element groove at least partially aligned with the pocket groove; and
a locking element extending through a combined space inside the pocket groove and the drilling-element groove, the first opening providing one point of access to one side of the locking element and the second opening providing another point of access to another side of the locking element.

### Claim 2 (depends on 1)

The drill bit of claim 1, wherein the drilling element comprises a cutting element.

### Claim 3 (depends on 1)

The drill bit of claim 1, wherein the drilling element comprises a rolling element.

### Claim 4 (depends on 1)

The drill bit of claim 1, wherein the drilling element comprises a depth-of-cut controller (DOCC).

### Claim 5 (depends on 1)

The drill bit of claim 1, wherein the locking element comprises a locking ring.

### Claim 6 (depends on 1)

The drill bit of claim 1, wherein the locking element comprises a locking wire.

### Claim 7 (depends on 1)

The drill bit of claim 1, wherein the locking element comprises one of shaped memory metal, spring steel, and an epoxy.

### Claim 8 (depends on 1)

The drill bit of claim 1, wherein the drilling-element groove is aligned with the pocket groove with an offset.

### Claim 9 (depends on 1)

The drill bit of claim 1, wherein a cavity formed by the pocket groove and the drilling element groove has one of a U-shape and an L-shape from a first end of the cavity to an opposing end of the cavity.

### Claim 10 (depends on 1)

The drill bit of claim 1, wherein a cavity formed by the pocket groove and the drilling-element groove has one of a circular cross-sectional shape, a square-type cross-sectional shape, a triangular cross-sectional shape, or a combination thereof.

### Claim 11 (depends on 1)

The drill bit of claim 1, further comprising a locking cap located at an opening of a cavity formed by the pocket groove and the drilling-element groove, the locking cap comprising one of a pressed cap, a threaded plug, a braze, and an epoxy.

### Claim 12 (depends on 1)

The drill bit of claim 1, wherein the drilling element has a circular cross section with a flattened side.

### Claim 13

A downhole drilling tool, comprising:
a pocket;
a pocket groove adjoining the pocket;
a drilling element located in the pocket, the drilling element including:
a drilling-element groove at least partially aligned with the pocket groove, the drilling element groove extending from a first opening on a surface of the drilling element to a second opening on the surface of the drilling element; and
a locking element extending through a U-shaped combined space inside the pocket groove and the drilling-element groove, the first opening providing one point of access to one side of the locking element and the second opening providing another point of access to another side of the locking element.

### Claim 14 (depends on 13)

The downhole drilling tool of claim 13, wherein the drilling element comprises a cutting element.

### Claim 15 (depends on 13)

The downhole drilling tool of claim 13, wherein the drilling element comprises a rolling element.

### Claim 16 (depends on 13)

The downhole drilling tool of claim 13, wherein the drilling element comprises a depth-of-cut controller (DOCC).

### Claim 17 (depends on 13)

The downhole drilling tool of claim 13, wherein:
the downhole drilling tool comprises a drill bit; and
the pocket and the pocket groove are located on a blade of the drill bit.

### Claim 18 (depends on 13)

The downhole drilling tool of claim 13, wherein:
the downhole drilling tool comprises a reamer; and
the pocket and the pocket groove are located on the reamer.

### Claim 19 (depends on 13)

The downhole drilling tool of claim 13, wherein:
the downhole drilling tool comprises a stabilizer; and
the pocket and the pocket groove are located on the stabilizer.
